Mental Math Worksheet
Recommended for 1st Grade — 5th Grade
Mental Math Worksheet
Name: ____________________Date: ____________
Instructions: Using mental strategies like making ten, doubling, and compensation to compute quickly.
20 problems
11 + 20 = ______
16 + 10 = ______
70 − 10 = ______
6 × 10 = ______
79 + 20 = ______
42 − 10 = ______
3 × 10 = ______
66 + 10 = ______
71 + 10 = ______
21 − 10 = ______
25 + 10 = ______
99 − 10 = ______
4 × 10 = ______
34 + 10 = ______
17 + 10 = ______
78 + 10 = ______
5 × 10 = ______
84 − 10 = ______
9 × 10 = ______
73 + 20 = ______
